Elevated railway



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D. D. READ. BLEVATED RAILWAY.

No. 879,181. l Patented M81. 8. 1888.

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D D. READ.

BLEVATED RAILWAY.

No. 379,181. Paten-ted Mar. 6, 1888.

N. PETERS. mwuhugnpmr. wuingwn. nc,

v l UNITED STATES PATENT OFFICE.

D. DEAN READ, OF BOSTON, MASSACHUSETTS.

E LEVATE D RAILWAY.

SPECIFICATION forming part of Letters Patent No. 379,181, dated March 6,1888. i Application filed December 24, 1887. Serial No. 258,891. (Nomodel.)

To all whom tmc/.y concern:

Be it known that I, D. DEAN READ, of Boston, county of Suffolk, State ofMassachusetts,

'representing like parts.

My invention relates to an elevated-railway structure composed oftrusses supported on suitable columns or uprights above and below thecars, which have trucks above and below eno-operating with rails on theupper and under trusses, substantially as shown in Letters Patent No.373,605, granted to me November 22, 1887, to which reference may be had.i

The present invention consists, mainly, in details of construction ofthe trusses and rails by which angle-iron and rails of usual shape may`be employed throughout the structure without requiring the rolling ofthe special shapes, as in the structure shown in the patent referred to.

The present invention consists, mainly, in progiding the top flange ofthe'lower truss and the bottom flange of theupper truss with lateralarms, on which are supported railwayrails of the usualT shape, whichrest on longitudinal supports between the said lateral arms, and, whenrequired, may be stifened by secondary trus'sing.

The invention also consists in various other details, which will behereinafter pointed out.

Figure l is a side elevation of a portion of portion of the upper truck;Fig. 9, aside elevation of a portion of the upper truck, and Fig. l0 aplan view oi' a portion thereof.

4The general arrangement of the structure, consisting of uprights orcolumns a, extended erate with the said columns to support the lower ormain truss, d, andA upper truss,f, is substantially the same as in mypatent hereinbel'ore referred to.

In the present invention the upper chord, d', (see Figs. 4, 5, and 6,)of thelower truss hassecured to it from point to point along its lengthtransverse arms or cross-pieces g, which inV turn support at their endslongitudinal beams h, on which rest the rails i, which are of the usualT shape.

The crossl pieces g are provided at their ends with ears g', that engagethe lianges of the rails z', which are securely fastened upon the beamsh by clamp-pieces 7c, bolted to the said armsg between the rails and thecentral truss, d.

The outer ends ofthe cross-piecesg are supported by braces m, extendingto the lower chord, di, of the truss, as shown in Fig. 4. Longitudinalpieces of angle-iron, n, are fast ened to the upper ends of'said braces,the

lower edges of which pieces ot' angle-iron cooperate with guard-wheelsn/,connect'ed with braces n2, extending downward from the carbodyandserving to prevent the cars from overturning in ease an accidentshould occur to the running-gear at the top of the car. The strips nalso contribute to the support of the beams h and rails 1lV thereon.

The rails i are ofcomparatively narrow gage, and are not depended uponsolely to afford sufficient stability for the running of the cars, whichare retained in their upright position or prevented from overturning bythe upper truss, f, (see Figs. 7 and 8,) the lower chord, f', of whichis provided with crosspieces g2, having at their outer ends upturnedprojections g3, to which are fastened longitudinal beams 71,', on whichare supported the rails i', which cooperate with the trucks or hangersat the top of the car-body, as shown in Fig. 2.

The arms g2 are strengthened by bracesm,"

extending to the upper chord of the upper truss, and the rails iarefastcned by clamps k', bolted to the said cross-pieces g2.

' The upper trucks or hangers may consist of double-flanged wheels o,(see Figs. 8 and 9,) journaled on yokes o', as shown in Figs. 9 and 10,swiveled upon rods o2, having an enlargement at the lower end, as shownin Fig. 9, by which they are fastened in suitable sockets connected withthe frame-work at the top of the car.

The lower trucks consist of a framc,p, (see Fig. 6,) swiveled upon thecar-body and provided with bearings p for the journals of the axles otthe wheels pt, which may have a single inner flange, as in the usualrailway construct-ion.

The wheel-base aftorded by the lower track,- t', is suicient to supportthe cars, and may be depended upon aloneas shown in Fig. 3, at switchesor places where it is desirable to discontinue or form a break in theupper truss, which affords additional stability in the main part of thetrack, so that the cars may run safely at high speeds.

Vhen required, the rails i and t" may be stiffened by secondarytrussing, as represented at t, Figs. l, 4, 5, and 7, consisting oftie-rods fastened to the lower flange of the beams h and h.

The upper chord, d', of thelower truss may also support a longitudinalbox or trough, a, composed of angle-iron, for the purpose of inclosingand protecting a propelling-cable, w, supported on friction-wheels w',having bearings in the sides ofsaid trough, and thelower chord of theupper truss may be provided with a box, o, also composed of angle-iron,as shown, in which is inclosed an electric conductor, c, which may beemployed when the cars are propelled by electricity.

I claiml. An elevated-railway structure comprising a supporting-trusscentrally located below the ears and having its upper memberprovided-with cross-pieces supporting longitudinal beams and T- railsthereomcombined with au upper truss provided with rails, the said upperand lower trusses co operating with cars having trucks above and beloweo-operating with said rails on the upper and lower trusses,substantially as described.

2. An elevated-railway structure comprising a truss beneath the carshaving on its upper melnber cross-bars and rails supported at the endsof said cross-bars, combined with a longitudinal trough supported onsaid truss between said rails, substantially as and for the purposedescribed.

In a railway structure, a truss centrally located with relation to thecars, having one of its chords provided with cross pieces and railssupported at the ends ofsaid cross-pieces, co operating with trucksconnected with the car-body, and a longitudinal trough or boX supportedon the said chord ofthe truss, substantially as and for the purposedescribed.

4. In an elevated-railway structure, a truss u centrally located withrelation to the cars, having its upper member provided with crosspieces,combined with rails supported on said cross-pieces, and longitudinalstrips of angleiron having their horizontal portion or flange connectedwith the under sides ot' said crosspieces and their vertical portion orflange projecting downward from said cross-pieces, substantially as andfor the purpose described.

5. In an elevated-railway structure, a truss centrally located below thecars, having its upper member provided,with cross-pieces, and railssupported on the ends of said crosspieces, combined with bracesextending downward and inward from the ends ot' said crosspieces tolower chord of the truss, substantially as described.

6. A truss and cross-pieces supported on the chord thereof, providedwith upturned ends and rails supported on said cross-pieces and engagedby the upturned ends thereof, and clamps secured to the saidcross-pieces between the rails and engaging the lower flanges ofsaidrails, substantially as described.

7. The main truss, combined with crosspieces supported on one of thechords thereof, rails supported on the ends of said cross-pieces, andsecondary trussing for stit'fening said rails, substantially asdescribed.

8. In a railway structure, a truss centrally located above the cars,having its lower chord provided with cross-pieces, and beams and railssupported at the ends of said cross-pieces, substantially as described.

9. In an elevated-railway structure, a single truss centrally locatedbeneath one line of track, having its upper memberprovided withcross-pieces and rails supported at the ends of said cross-pieces, andlongitudinal strips projecting down from the end of said crosspieces,combined with cars having trucks beneath them provided with wheels thatrun on said rails, and braces a?, extending downward from the car-bodyand provided with guardwheels ruiming on said downwardly-projectingstrips, substantially as and for the purpose described.

10. A truss provided with rails forming a track above the cars, combinedwith ears having hangers, each composed ot'a pair otdoubletia-ngedwheels journaled at the opposite ends.

of yokes 0', and rods having a swivel-connection with the said yokesbetween said wheels and with the upper part of the car-body,substantially as described.

ll. The combination of a series of support ing posts or uprights, with atruss supported on the said uprights and centrally located with relationto the line of track, the upper chord of said truss being provided withcross-pieces and rails supported at the ends of said crosspieces,constituting a single line of railwaytrack, and braces extending fromthe outer ends of said cross-pieces downwardly and inwardly to the lowerchord of the truss, substantially as described.

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12. A truss hailing one chord provided Withcross-pieces, `combined withbraces extending from the ends of said cross-pieces to the other chordof said truss and rails supported on the ends of said cross-pieces, andtie-rods forming the secondary trusses beneath the said rails,substantially as described.

In testimony whereof I have signed my naine to this specification in thepresence of two subscribing witnesses.

D. DEAN READ.

Witnesses:

i Jos. P.- LIVERMORE,'

JAS. J. MALONEY.

